Hi guys, im currently repairing a switch HAC CPU 20 that has no power. if i got it right… pin 6 should have 3.2-3.3v and pin 18 around 1.8v even without the M9 power ic installed. then for the meantime i also removed the p13ic on the back. bqic replaced, fuel gauge replaced still no voltage reading on both pins. EN xx ic on the back replaced as well, just wanter to have expert opinion on what possibly causing the issue. type c port replaced and continuity on points checked and its all ok.
Does a bad max77620 ic can cause this issue? want to hear expert opinion first. that’s the last thing i want to replace. ic looks good though. no chipped watsoever.